i'm don lemon, thanks for watching. >>> okay, stand by, piers. >> things have got pretty wild with some of my guests, but nothing quite like this. what the hell's that? my studio has turned into a jungle. >> whoa, whoa! jack, am i going to die here? oh, my god, what's this? tonight, the one and only jack hanna and a few of his closest friends. >> he deficates on his legs to keep him cool. >> you know what, too much information. >> if he bites you, it won't hurt bad. this is the only animal in the world to carry leprosy. i'm not joking. >> now you tell me! never quite know what will happen next when jack hanna's in the house. he's got my notes. >> i'm sorry, that your notes? >> this is a very dangerous edition of "piers morgan tonight." good evening and welcome to a special "piers morgan tonight." as you can see, the studio looks a little different tonight. trust me, several of my guests that will be here over the course of the hour, cheetahs, foxes, owls, cuomo doe dragons and these. i'm here with jack hanna where anything can happen. also the host of jack hanna's into the wild and a ne